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From "Kristian Waagan (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-2646) Cleanup of Clob control/support structures
Date Mon, 04 Jun 2007 08:08:35 GMT

     [ https://issues.apache.org/jira/browse/DERBY-2646?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kristian Waagan updated DERBY-2646:
-----------------------------------

    Attachment: derby-2646-04a-storestreamclob_utf8util.stat
                derby-2646-04a-storestreamclob_utf8util.diff

'derby-2646-04a-storestreamclob_utf8util.diff' includes the following changes:

A      java/engine/org/apache/derby/impl/jdbc/StoreStreamClob.java
    Added StoreStreamClob, which implements InternalClob. It represents
    a Clob on top of a stream from store, and is read-only.

M      java/engine/org/apache/derby/impl/jdbc/InternalClob.java
    Modified JavaDoc. An important aspect of some of the methods is only
    described by the JavaDoc, it is not possible to see from the method
    signature alone. This is that EOFException is thrown if the position
    is larger than the length of the Clob. Should the signature include
    both EOFException and IOException in the throws-clause?

A      java/engine/org/apache/derby/iapi/util/UTF8Util.java
    Created a utility class for operations on byte streams encoded as
    UTF-8. Currently only a few skip methods are in there. The goal of
    this class is to centralize the error-prone activity of decoding
    UTF-8 encoded streams. Please review!
    The main internal method does look a bit verbose to me, but I don't
    think it is worth trimming down and "obfuscating" it until it is
    shown to have performance problems.

Again, none of this code is enabled. This will happen in the next patch,
where EmbedClob and StoreStreamControl will be modified. There will also
be a separate patch for additional tests.

I expect to commit this code really fast.

> Cleanup of Clob control/support structures
> ------------------------------------------
>
>                 Key: DERBY-2646
>                 URL: https://issues.apache.org/jira/browse/DERBY-2646
>             Project: Derby
>          Issue Type: Sub-task
>          Components: JDBC
>    Affects Versions: 10.3.0.0
>            Reporter: Kristian Waagan
>            Assignee: Kristian Waagan
>             Fix For: 10.3.0.0
>
>         Attachments: derby-2646-01a_trailing_space.diff, derby-2646-01a_trailing_space.stat,
derby-2646-02a-clob-reorg.diff, derby-2646-02a-clob-reorg.stat, derby-2646-03a-internalclob.diff,
derby-2646-04a-storestreamclob_utf8util.diff, derby-2646-04a-storestreamclob_utf8util.stat
>
>


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